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Rape seed cake compound corrosion inhibitor and preparation method and application thereof

A technology of rapeseed meal and corrosion inhibitor, which is applied in the field of materials, can solve the problems of unrealized application of value applications, and achieve the effect of low cost and safe use.

Inactive Publication Date: 2020-04-17
SOUTHWEST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its value application has not been really applied

Method used

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  • Rape seed cake compound corrosion inhibitor and preparation method and application thereof
  • Rape seed cake compound corrosion inhibitor and preparation method and application thereof
  • Rape seed cake compound corrosion inhibitor and preparation method and application thereof

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preparation example Construction

[0028] The preparation method of the rapeseed cake compound corrosion inhibitor of the present invention is to mix and stir the various raw materials of the formula ratio to obtain the target rapeseed cake compound corrosion inhibitor.

[0029] The application of the rapeseed cake compound corrosion inhibitor of the present invention is the application of the rapeseed cake compound corrosion inhibitor in the pickling of steel materials.

[0030] The present invention will be further explained with specific implementation cases below:

Embodiment 1

[0032] ——Preparation of rapeseed meal extract

[0033] A. Pre-treatment: After collecting the rapeseed meal, it is air-dried and then placed in a blast oven, dried at a constant temperature of 60 ℃ ~ 70 ℃ for 60 ~ 72 hours, taken out and naturally cooled to room temperature, crushed, and the vegetable with a particle size of 150 ~ 2000 μm Seed meal meal;

[0034] B. Extraction: soak the rapeseed meal powder with 10~70% ethanol solution at room temperature (5~35℃) for 2~6 h, solid-liquid ratio 1:25~50, then reflux extraction in 60~85℃ water bath 3~9 h;

[0035] C. Concentration: Vacuum filter the ethanol extract obtained by refluxing to remove the rapeseed cake residue powder contained in it, and then take it on a rotary evaporator at 45~75℃ to concentrate the solution by rotary evaporation to 1 / 4~1 / 2 volume;

[0036] D. Extraction: Add 2-6 times the volume of petroleum ether to the concentrated ethanol extract, shake it and let it stand for 15-60 h, separate the upper petroleum eth...

Embodiment 2

[0038] Example 2-Preparation of a metal corrosion inhibitor for rapeseed meal

[0039] Take 1.0 g of rapeseed cake extract of Example 1, 0.1 g of high polymer polyethylene glycol, 0.2 g of anionic surfactant disodium lauryl sulfosuccinate, and 0.1 g of diethylaminopentyne glycol , Add 1 L of hydrochloric acid lotion with a concentration of 0.5 to 5.0 mol / L and stir evenly to obtain the target rapeseed cake compound corrosion inhibitor.

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Abstract

The invention discloses a rape seed cake compound corrosion inhibitor and a preparation method and application thereof. The rape seed cake compound corrosion inhibitor comprises, by weight, 0.1-1.0g / Lof rape seed cake meal extract, 0.05-0.5g / L of high polymer, 0.1-0.5g / L of anionic surfactant, 0.01-0.1g / L of diethylamino pentyne diol, and the balance a pickling solution. The preparation method comprises the following steps: mixing and uniformly stirring raw materials according to the formula ratio to obtain the target rape seed cake compound corrosion inhibitor. The rape seed cake compound corrosion inhibitor is applied in acid pickling of iron and steel materials.

Description

Technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a rapeseed cake compound corrosion inhibitor and a preparation method and application thereof. Background technique [0002] Rapeseed cake (rapeseed cake, RSC). In recent years, the annual output of rapeseed meal in my country has been more than 5 million tons, ranking first in the world, and it is an extremely rich feed protein resource. With the rapid development of the cultivation and promotion of high-quality canola with low-glucosinolate and low-erucic acid (hereinafter referred to as double-low) in China, the use of rapeseed meal, especially double-low rapeseed meal, is in line with the cost reduction requirements of the feed industry It has also received increasing attention. The Yangtze River Basin and Southwest China are my country's main rapeseed production areas. The rapeseed output of nine provinces and cities including Hubei, Anhui, and Guizhou has account...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/06C23G1/08
CPCC23G1/06C23G1/08
Inventor 邓书端李向红杜官本
Owner SOUTHWEST FORESTRY UNIVERSITY
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